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1.  Answer BOTH of these questions in the space below:

A)  What are the two types of waves?

B)  What are the two forms these waves can take?

2.  Answer BOTH of these questions in the space below:

A)  What is the standard unit of measurement of frequency?

B)  What does this measurement represent?

3.  What is the audible frequency range?

4.  What four variations from the straight wave path are caused by atmospheric or weather elements?

5.  Define each of the following wave terms:

A)  Cycle                              B)  Wavelength

C)  Amplitude                     D)  Period

6.  What range of frequencies in the electromagnetic spectrum comprise radio waves?

7.  What is the fundamental principle of radar?

8.  What are the three general categories of U.S. navy radars?

9.  What are the two categories of search radars, and what are they used for?

10.  What is the "scope" or PPI presentation for a search radar?

11.  What are the functions of EA and EP?